Add alertmanager

ansible/roles/forrest/files/prometheus/alertmanager.yml

@@ -0,0 +1,15 @@
+global:
+  resolve_timeout: 3m
+  smtp_smarthost: smtp.eu.mailgun.org:465
+  smtp_from: "{{ alertmanager_from_address }}"
+  smtp_auth_username: "{{ alertmanager_from_address }}"
+  smtp_auth_password: "{{ alertmanager_smtp_password }}"
+
+route:
+  receiver: default
+
+receivers:
+  - name: default
+    email_configs:
+      - to: "{{ alertmanager_to_address }}"
+        send_resolved: true

ansible/roles/forrest/files/prometheus/docker-compose.yml

@@ -19,6 +19,12 @@ services:
     volumes:
       - ./blackbox.yml:/etc/blackbox_exporter/config.yml
 
+  alertmanager:
+    image: prom/alertmanager:latest
+    restart: unless-stopped
+    volumes:
+      - ./alertmanager.yml:/etc/alertmanager/alertmanager.yml
+
 networks:
   grafana:
     external: true

ansible/roles/forrest/files/prometheus/prometheus.yml

@@ -1,3 +1,9 @@
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+            - alertmanager:9093
+
 scrape_configs:
   - job_name: telegraf
     metric_relabel_configs: